Acrylic sheet having uniform distribution of coloring and minera

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...

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428328, 428338, 428339, 524437, 525302, 525309, B32B 516

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active

057471541

ABSTRACT:
Ranges of chain-transfer agents, thixotropic agents, and alumina trihydrate content are balanced to minimize migration or maldistribution of coloring matter and alumina trihydrate during curing of methyl methacrylate in a syrup including polymethylmethacrylate and also during subsequent heating and deformation in thermoforming, to achieve constancy of impact resistance and improve stability of patterns even in deformed portions of formed sheets.

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patent: 4608291 (1986-08-01), Gove
patent: 4803026 (1989-02-01), Ikeda et al.
patent: 5244941 (1993-09-01), Bruckbauer et al.
patent: 5521243 (1996-05-01), Minghetti et al.
Dupont Corian .RTM. Technical Bulletin, pp. 1-4, Oct. 1987.

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